Circles Circumference

what is the formula for finding diameter

• r = 2 d

• d = 2 r

• a = m c²

• c = π 2 r

Tags

CCSS.HSG.C.A.2

which segment above represents the diameter

• BC

• AC

• BD

• LM

what is the radius of the inner circle?

• 12 in

• 8 in

• 8 ft

• 4 in

What is circumference?

• The distance around a circle.

• The space inside the circle.

• A line from side to side passing through the center.

• A line from the center to the side.

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's approximate circumference?

• 3 m 

• 9.42 m

• 12 m

• 18.84 m

Tags

CCSS.7.G.B.4

Which of the following names a radius?

• segment AC

• segment DB

• segment AB

• segement BC

Which of the following names a diameter?

• segment AC

• segment DB

• segment AB

• segment BC

Which segment is the diameter?

• AC

• BD

• LM

• CE

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

The radius is....

• a line that crosses through the center and touches each edge 

• the center point of a circle 

• a line from the center point to the edge of the circle

• an element in science